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Finding the Fourth Proportional to 554,120.66, 764,690.01 and 299,471.24

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Solution

The fourth proportional to 554,120.66, 764,690.01 and 299,471.24 is: 413,272.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    554,120.66 : 764,690.01 = 299,471.24 : x
  2. Step 2: Convert to fraction form
    554,120.66/764,690.01 = 299,471.24/x
  3. Step 3: Cross multiply
    554,120.66x = 764,690.01 × 299,471.24
  4. Step 4: Simplify right side
    554,120.66x = 229,002,665,510.31
  5. Step 5: Solve for x
    x = 229,002,665,510.31/554,120.66
  6. Step 6: Final answer
    x = 413,272.20

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.